Pass test value to Collection::when callbacks (#22224)

Author: alepeino

src/Illuminate/Support/Collection.php

@@ -433,9 +433,9 @@ public function filter(callable $callback = null)
     public function when($value, callable $callback, callable $default = null)
     {
         if ($value) {
-            return $callback($this);
+            return $callback($this, $value);
         } elseif ($default) {
-            return $default($this);
+            return $default($this, $value);
         }
 
         return $this;

tests/Support/SupportCollectionTest.php

@@ -2306,8 +2306,8 @@ public function testWhen()
     {
         $collection = new Collection(['michael', 'tom']);
 
-        $collection->when(true, function ($collection) {
-            return $collection->push('adam');
+        $collection->when('adam', function ($collection, $newName) {
+            return $collection->push($newName);
         });
 
         $this->assertSame(['michael', 'tom', 'adam'], $collection->toArray());